[DML] Re: Engine cover screens - necessary or not?
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[DML] Re: Engine cover screens - necessary or not?



Maybe the INTERNAL heat is dissipated by the cooling system,but not the external heat generated by the exhaust system that is finely engineered completely around the Engine including cast iron exhaust manifolds a cross over pipe and the catalytic converter and not to mention the Muffler. With the venting from the engine cover COVERED on a hot 90 degree day..without the vents the heat is forced BACKWARDS  to try to escape downwards into the areas where the external heat is being generated,which could overheat the same items above that are releasing heat..and the last thing you want is more heat in a fiberglass engine compartment..Ever notice the above average amounts of newer Fiberglass Ferrari's and Fiberglass Lamborghini's that are burning to a crisp from excess heat buildup in their engine compartments..Trust me if anything try to INCREASE the cooling air into the engine compaetment/getting the hot exhaust heat out of the engine compartment..the early mid 1980's Lotus Esprits had the right idea by putting a electric fan ON TOP of the engine cover to help dissipate the heat generated. 

Claude
1024 Bric

--- In dmcnews@xxxxxxxxxxxxxxx, "jtrealtywebspannet" <jtrealty@...> wrote:
>
> The majority of the heat from the motor is dissipated by the cooling system. That is, of course, while it operates and it only operates when the motor operates.Once the motor stops the heat builds up quickly. In one Lotus model they have a thermostatically controlled fan in the cover to help cool the motor. The heat ages everything in the engine bay quicker and in the carbureated Lotus versions it caused vapor lock. The first thing that will be affected by the excessive heat is the alternator. It will reduce it's output.
> David Teitelbaum
> 
> --- In dmcnews@xxxxxxxxxxxxxxx, Nick Kemp <nkemp@> wrote:
> >
> > Experiment.  Block off the vents temporarily and monitor engine 
> > compartment temperatures as well as engine temperatures.
> > 
> > Nick
> > 
> > 
> > Martin Gutkowski wrote , ----On 2/21/2013 2:03 AM 
> > ---------------------------:
> > > The alpine GTA has an enclosed engine bay (at the wrong end of the car for direct air flow don't forget), and it has a quite intricate ventilation system to blow air down onto the top of the engine
> > >
> > > Martin
> > >
> > > Sent from my BlackBerry®
> > >
> > > -----Original Message-----
> > > From: "Tom" <dmctom@>
> > > Sender: dmcnews@xxxxxxxxxxxxxxx
> > > Date: Thu, 21 Feb 2013 01:52:15
> > > To: <dmcnews@xxxxxxxxxxxxxxx>
> > > Reply-To: dmcnews@xxxxxxxxxxxxxxx
> > > Subject: [DML] Engine cover screens - necessary or not?
> > >
> > > Hello everyone,
> > >
> > > Has anyone ever tried to get rid of the screens in the engine cover?
> > > Does the car really need them? Are they necessary?
> > > I'm sure it will raise the engine compartment temperature a little but is it something that will actually make a difference? Most cars do not have any vents in their engine covers so why would a DeLorean need them?
> > > I'm just wondering as I hate to see the engine get all wet every time it rains. I don't like the idea of water dripping right on the belts and corroding the A/C clutch. And I'm sure you all know about water getting into the throttle cable and then freezing.
> > > So, the idea is to just remove the screens and fill in the holes. What do you think?
> > >
> > >
> > > Greetings from Poland!
> > > Tom Niemczewski
> > > Vin 6149 plus 2418, 3633, 5030, 16473, 17086
> > > Google earth: 52°25'17.66"N, 21° 1'58.40"E
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > > ------------------------------------
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> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > To address comments privately to the moderating team, please address:
> > > moderators@
> > >
> > > For more info on the list, tech articles, cars for sale see www.dmcnews.com
> > >
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> > >
> > >
> > >
> >
>




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